EP3719319A3 - Compressor - Google Patents

Compressor Download PDF

Info

Publication number
EP3719319A3
EP3719319A3 EP20167640.0A EP20167640A EP3719319A3 EP 3719319 A3 EP3719319 A3 EP 3719319A3 EP 20167640 A EP20167640 A EP 20167640A EP 3719319 A3 EP3719319 A3 EP 3719319A3
Authority
EP
European Patent Office
Prior art keywords
oil supply
driving
case
low pressure
pressure ratio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20167640.0A
Other languages
German (de)
French (fr)
Other versions
EP3719319A2 (en
EP3719319B1 (en
Inventor
Howon Lee
Taekyoung Kim
Cheolhwan Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP3719319A2 publication Critical patent/EP3719319A2/en
Publication of EP3719319A3 publication Critical patent/EP3719319A3/en
Application granted granted Critical
Publication of EP3719319B1 publication Critical patent/EP3719319B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088—Lubrication
    • F04C15/0092—Control systems for the circulation of the lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/021—Control systems for the circulation of the lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/023—Lubricant distribution through a hollow driving shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/14—Lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/98—Lubrication

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

A scroll compressor is disclosed, which may provide an oil supply path opened only in case of driving of a low pressure ratio to improve a differential pressure oil supply structure which may have a defect in oil supply in case of driving of the low pressure ratio.
EP20167640.0A 2019-04-02 2020-04-02 Compressor Active EP3719319B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190038363A KR102206246B1 (en) 2019-04-02 2019-04-02 A compressor

Publications (3)

Publication Number Publication Date
EP3719319A2 EP3719319A2 (en) 2020-10-07
EP3719319A3 true EP3719319A3 (en) 2020-10-21
EP3719319B1 EP3719319B1 (en) 2023-11-22

Family

ID=70154354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20167640.0A Active EP3719319B1 (en) 2019-04-02 2020-04-02 Compressor

Country Status (3)

Country Link
US (1) US11635077B2 (en)
EP (1) EP3719319B1 (en)
KR (1) KR102206246B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102302329B1 (en) * 2019-04-02 2021-09-15 엘지전자 주식회사 A compressor
KR102448868B1 (en) 2020-04-20 2022-09-30 엘지전자 주식회사 A compressor
KR20240022816A (en) * 2022-08-12 2024-02-20 엘지전자 주식회사 Scroll compressor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110006181A (en) * 2009-07-13 2011-01-20 엘지전자 주식회사 Scoroll compressor and refrigerator having the same
KR20110131751A (en) * 2010-05-31 2011-12-07 엘지전자 주식회사 Scroll compressor
US20160195090A1 (en) * 2013-08-10 2016-07-07 Daikin Industries, Ltd. Scroll compressor
US20180051697A1 (en) * 2015-02-27 2018-02-22 Daikin Industries, Ltd. Scroll-type compressor
EP3418575A1 (en) * 2017-06-21 2018-12-26 LG Electronics Inc. Compressor having integrated flow path structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6245429A (en) 1985-08-23 1987-02-27 Sato Seiki:Kk Crack preventing method for flange part in burring
JP2001020888A (en) * 1999-07-06 2001-01-23 Fujitsu General Ltd Hermetic compressor
KR100882481B1 (en) 2007-04-25 2009-02-06 엘지전자 주식회사 Structure for feeding oil in scroll compressor
JP2007285304A (en) * 2007-08-06 2007-11-01 ▲荒▼田 哲哉 Method for lubricating working chamber of scroll fluid machine
KR20180091577A (en) * 2017-02-07 2018-08-16 엘지전자 주식회사 Scroll compressor
KR102365394B1 (en) 2017-05-12 2022-02-21 엘지전자 주식회사 Scroll compressor
KR20180136282A (en) 2017-06-14 2018-12-24 엘지전자 주식회사 Compressor having centrifugation and differential pressure structure for oil supplying

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110006181A (en) * 2009-07-13 2011-01-20 엘지전자 주식회사 Scoroll compressor and refrigerator having the same
KR20110131751A (en) * 2010-05-31 2011-12-07 엘지전자 주식회사 Scroll compressor
US20160195090A1 (en) * 2013-08-10 2016-07-07 Daikin Industries, Ltd. Scroll compressor
US20180051697A1 (en) * 2015-02-27 2018-02-22 Daikin Industries, Ltd. Scroll-type compressor
EP3418575A1 (en) * 2017-06-21 2018-12-26 LG Electronics Inc. Compressor having integrated flow path structure

Also Published As

Publication number Publication date
KR20200116691A (en) 2020-10-13
EP3719319A2 (en) 2020-10-07
KR102206246B1 (en) 2021-01-22
US11635077B2 (en) 2023-04-25
US20200318636A1 (en) 2020-10-08
EP3719319B1 (en) 2023-11-22

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